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BK104 — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

BK104: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, head_style: FLAT, stem_style: GROOVED, head_height: 0.1875 INCHES NOMINAL IN, neck_radius: 0.3750 INCHES NOMINAL IN, stem_length: 4.5680 INCHES MINIMUM AND 4.5830 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-352-3054, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BK104
NSN: 2815-00-352-3054
NIINs: 003523054, 009499215
FSC: 2815 — Diesel Engines and Components
CAGE: 89073 — REXARC INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
head_styleFLAT
stem_styleGROOVED
head_height0.1875 INCHES NOMINAL IN
neck_radius0.3750 INCHES NOMINAL IN
stem_length4.5680 INCHES MINIMUM AND 4.5830 INCHES MAXIMUM IN
groove_width0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
stem_diameter0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
chamfer_length0.0156 INCHES NOMINAL IN
groove_diameter0.2670 INCHES MINIMUM AND 0.2730 INCHES MAXIMUM IN
outside_diameter1.2760 INCHES MINIMUM AND 1.2860 INCHES MAXIMUM IN
seat_angle_in_deg45.0
NSN2815-00-352-3054
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN BK104 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
STEM DIAMETER: 0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
•
FSC APPLICATION DATA: DIESEL ENGINE
•
HEAD HEIGHT: 0.1875 INCHES NOMINAL IN
•
STEM LENGTH: 4.5680 INCHES MINIMUM AND 4.5830 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 45.0
•
CHAMFER LENGTH: 0.0156 INCHES NOMINAL IN
•
NECK RADIUS: 0.3750 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.2670 INCHES MINIMUM AND 0.2730 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STEM DIAMETER0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
FSC APPLICATION DATADIESEL ENGINE
HEAD HEIGHT0.1875 INCHES NOMINAL IN
STEM LENGTH4.5680 INCHES MINIMUM AND 4.5830 INCHES MAXIMUM IN
SEAT ANGLE IN DEG45.0
CHAMFER LENGTH0.0156 INCHES NOMINAL IN
NECK RADIUS0.3750 INCHES NOMINAL IN
GROOVE DIAMETER0.2670 INCHES MINIMUM AND 0.2730 INCHES MAXIMUM IN
METALLIC HARDNESS RATING AND LOCATION46.0 ROCKWELL C NOMINAL TIP
METALLIC HARDNESS RATING AND LOCATION92.0 ROCKWELL B NOMINAL HEAD
SUBSTITUTES & CROSS-REFERENCES 1
D1385Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BK104?
BK104 is a VALVE,POPPET,ENGINE.
What parts can replace BK104?
There is 1 known substitute for BK104: D1385. Substitute compatibility should be verified for your specific system.
What is the NSN for BK104?
BK104 is cataloged in the U.S. Government catalog under NSN 2815-00-352-3054. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.